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| TCP-over-TCP Tunneling |
SSL VPN technologies tunnel private network traffic inside a second encrypted protocol for traversal over of the public Internet. This process has overhead but is compounded by the "TCP-over-TCP meltdown" which is inherent when encapsulating one protocol within another. Transmission control protocol (TCP) has various parameters (SYN, ACH, RTT) for setting retransmission times for the delivery of data from client to server in the event of packet loss.
However this repair and recover mechanism fails when encapsulated in a second TCP stream. If the encapsulating or Internet layer drops a packet (which is common even under ideal networking conditions) both TCP streams will attempt to correct the error and retransmit duplicate data. This exponentially queues up data transmissions and prevents the real private network data from promptly reaching its destination.
NeoAccel's patented ICAA & TSSL technology bypasses this fundamental problem of most SSL VPN technologies, accomplishing performance up to 30x competitors. |
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| Request a demo of ICAA & TSSL now. |
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